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Signature
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/s/Vivienne R. Schiffer, by Power of Attorney
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Stock symbol
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GLDD
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Transactions as of
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Dec 3, 2025
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Transactions value $
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-$130,155
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Form type
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4
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Date filed
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12/4/2025, 05:17 PM
Reporting Owners (1)
| Name |
Relationship |
Address |
Signature |
Signature date |
CIK |
| JOHANSON DAVID |
SVP-Project Acquisition & Ops |
C/O GREAT LAKES DREDGE & DOCK CORP., 9811 KATY FREEWAY, SUITE 1200, HOUSTON |
/s/Vivienne R. Schiffer, by Power of Attorney |
2025-12-04 |
0001940445 |
Transactions Table
| Type |
Sym |
Class |
Transaction |
Value $ |
Shares |
Change % |
* Price $ |
Shares After |
Date |
Ownership |
Footnotes |
| transaction |
GLDD |
Common Stock |
Sale |
-$130K |
-10K |
-9.61% |
$13.02 |
94.1K |
Dec 3, 2025 |
Direct |
F1, F2 |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.
Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.
Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).
Explanation of Responses: